Vehicle Wheels Alignment System Using Image Acquisition Sensor and Vehicle Wheels Alignment Method

1. A vehicle wheels alignment system using image acquisition sensor comprising: a support; a machine vision module mounted to the support, wherein the machine vision module comprises at least one image acquisition device, a position of the image acquisition device relative to the support is fixed, and the image acquisition device comprises an image acquisition sensor for acquiring an image having relevant parameters of hardware to be detected related to the wheels on a vehicle; a failure sensor for acquiring position change information about the image acquisition sensor and outputting a motion parameter signal comprising the position change information; and a controller electrically connected to the failure sensor for determining whether the position of the image acquisition sensor needs to be calibrated according to the motion parameter signal; further comprising an associated image acquisition device and an associated target; wherein the machine vision module comprises two image acquisition devices, the associated image acquisition device is fixed to one of the two image acquisition devices and is electrically connected to the controller, the associated target is fixed to the other one of the two image acquisition devices, the associated image acquisition device is used for acquiring position information about the associated target relative to the associated image acquisition device, and then obtaining the relation between the positional relationship between the left front wheel, the left rear wheel, the right front wheel, and the right rear wheel of the vehicle to be detected; further comprising an output module electrically connected to the controller, wherein the output module is used for outputting a determination result of the controller; and the output module comprises a display device or a sound output device.

2. The vehicle wheels alignment system according to claim 1, wherein the failure sensor is fixed to the image acquisition sensor.

3. The vehicle wheels alignment system according to claim 2, wherein the failure sensor is integrated within the image acquisition device.

4. The vehicle wheels alignment system according to claim 1, wherein the failure sensor comprises at least one of an acceleration sensor, a pressure sensor, and a gyroscope.

5. The vehicle wheels alignment system according to claim 1, wherein the support comprises: a base, a bottom of the base comprising a driving wheel; a vertical frame assembly mounted to the base and extending in a vertical direction; and a cross beam assembly mounted to the vertical frame assembly, the cross beam assembly and the vertical frame assembly slidingly fit in the vertical direction, and the image acquisition device being mounted to the cross beam assembly.

6. The vehicle wheels alignment system according to claim 1, wherein the support comprises a vertical frame assembly and a cross beam assembly; the cross beam assembly is mounted to the vertical frame assembly, the cross beam assembly and the vertical frame assembly are slidingly fit in the vertical direction, and the image acquisition device is mounted to the cross beam assembly.

7. The vehicle wheels alignment system according to claim 5, wherein the machine vision module comprises two of the image acquisition devices provided at intervals on the cross beam assembly; the controller is housed within the vertical frame assembly or the cross beam assembly.

8. The vehicle wheels alignment system according to claim 1, wherein one image acquisition device comprises at least two image acquisition sensors, the failure sensor being fixed to the image acquisition sensor and one image acquisition sensor corresponding to one failure sensor.

9. The vehicle wheels alignment system according to claim 1, wherein the machine vision module further comprises an image processor, the image processor being electrically connected to the image acquisition sensor and the controller, respectively, the image processor being used for optimizing the image acquired by the image acquisition sensor, and the image processor being integrally provided with the controller.

10. The vehicle wheels alignment system according to claim 1, further comprising a target to be detected, the target to be detected being used for being mounted to a wheel and the image acquisition device being used for acquiring an image of the target to be detected.

11. The vehicle wheels alignment system according to claim 1, wherein the controller is used for determining whether the position of the image acquisition sensor needs to be calibrated according to the motion parameter signal, comprising: the controller being used for executing a first intervention treatment when the motion parameter signal is greater than a first preset threshold.

12. The vehicle wheels alignment system according to claim 11, wherein the first intervention treatment comprises: locking a detection function of the vehicle detection system; or the first intervention treatment comprises: controlling the output module to output a first warning signal.

13. The vehicle wheels alignment system according to claim 11, wherein the controller is used for determining whether the position of the image acquisition sensor needs to be calibrated according to the motion parameter signal, comprising: the controller being used for executing a second intervention treatment when the motion parameter signal is greater than a second preset threshold and less than or equal to the first preset threshold.

14. The vehicle wheels alignment system according to claim 13, wherein the second intervention treatment comprises: controlling the output module to output a second warning signal.

15. The vehicle wheels alignment system according to claim 1, wherein the number of the controllers is the same as that of the failure sensors, one controller being correspondingly electrically connected to one failure sensor, and both the controller and the failure sensor being integrated into a corresponding image acquisition device.

16. The vehicle wheels alignment system according to claim 15, further comprising an output module, wherein the output module corresponds to the image acquisition device in a one-to-one correspondence, the output module is integrated into a corresponding image acquisition device and electrically connected to the controller, and the output module is used to output the determination result of the controller.

17. A vehicle wheels alignment method applied to the vehicle wheels alignment system according to claim 1, wherein the method comprises steps of: receiving a motion parameter signal comprising position change information of the image acquisition sensor sent by the failure sensor while controlling the image acquisition device to detect the vehicle; and determining whether the position of the image acquisition sensor needs to be calibrated according to the motion parameter signal, and if so, executing an intervention treatment.

18. The vehicle wheels alignment method according to claim 17, wherein determining whether the position of the image acquisition sensor needs to be calibrated, and if so, executing an intervention treatment, comprises: executing a first intervention treatment when the motion parameter signal is greater than a first preset threshold.